a person who says if four words let detroit go bankrupt or a president who had another four words, not on my watch. >> we're back live tonight with democratic national convention opening. this is republicans blasting the president or out of control debt. here is paul ryan in an iowa rally today. >> we just heard about an hour ago that our government eclipsed $16 trillion mark in our national debt. this is a serious threat to our economy. of all the broken promises from president obama, this is probably the worst one. because this debt is threatening jobs today, it's threatening prosperity today, and it's guaranteeing that our children and grandchildren get a diminished future. we have a debt clock at the convention last week. i don't see the debt clock this week. the problem is no leadership on this issue. the senate hasn't passed a budget in three years. we have a very clear choice ahead of us. are we going to stick to the same path, a nation in debt and doubt and in decline are going to let mitt romney get this thing turned around, cut spending, balance the budget and create jobs? th